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1. The spatial coordinates of a digital image (x,y) are proportional to:
Choose the correct option:

  • a) Position

  • b) Brightness

  • c) Contrast

  • d) Noise

The Brightness levels are distributed over the spatial area. Hence, the spatial coordinates are proportional to brightness levels.

2. Among the following image processing techniques which is fast, precise and flexible.
Choose the correct option:

  • a) Optical

  • b) Digital

  • c) Electronic

  • d) Photographic

Digital image processing is more flexible and agile techniques as it is fast, accurate and reliable.

3. An image is considered to be a function of a(x,y), where a represents:
Choose the correct option:

  • a) Height of image

  • b) Width of image

  • c) Amplitude of image

  • d) Resolution of image

The image is a collection of dots with a definite intensity or amplitude.

4. What is pixel?
Choose the correct option:

  • a) Pixel is the elements of a digital image

  • b) Pixel is the elements of an analog image

  • c) Pixel is the cluster of a digital image

  • d) Pixel is the cluster of an analog image

An Image is a collection of individual points referred as pixel, thus a Pixel is the element of a digital image.

5. The range of values spanned by the gray scale is called:
Choose the correct option:

  • a) Dynamic range

  • b) Band range

  • c) Peak range

  • d) Resolution range

The valued spanned in gray scale image are depicted using dynamic range values.

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